Removing and installing engine coolant thermostat housing

AR20.10-P-2710A

Removing and installing engine coolant thermostat housing

27.7.94

 

Removing, installing

1

Remove viscous fan clutch (1)

Engines with viscous fan clutch

 Left-handed thread

AR20.40-P-5660A

2

Drain coolant

at radiator

AR20.00-P-1142HG

3

Remove cover (16)

4

Disconnect coolant hoses (2, 3 and 4)



 Check condition of coolant hoses and hose clamps and replace if necessary.

*WH58.30-Z-1002-06A

5

Disconnect electrical connectors and vacuum pipes on temperature sensor in coolant thermostat housing (30)

6

Unscrew suspension lug (6)

7

Unscrew coolant thermostat housing (30)



Unscrew bolts (7, 8 and 9).

 Installation: Clean sealing surfaces and replace O-ring (31).

If the coolant thermostat housing (30) is replaced, observe location of temperature sensor 

*BA20.10-P-1003-01B

Location of temperature sensor, coolant thermostat housing

AR20.10-P-2710-01A

8

Install in reverse order

9

Check cooling system for leaks.

AR20.00-P-1010HA

Number

Designation

Engine 111

BA20.10-P-1003-01B

Bolt, coolant thermostat housing

M6

Nm

10

M8

Nm

25

Number

Designation

WH58.30-Z-1002-06A

7 mm socket hexagon on flexible shaft for hose clamps with worm drive